The director of Rogue One: A Star Wars Story revealed during a recent Reddit AMA that he had some unexpected emotions while working on Vader's scenes in the film. While Vader was played by character actor Spencer Wilding and stuntman Daniel Naprous in the film, the knowledge of that did
not stop Edwards from being impacted by working so closely with the popular character.
"You kind of get nervous." Edwards revealed. "Even though you know it's an actor inside, once that helmet goes in, it's DARTH!"
Edwards continued to say that these emotions did impact his technique when directing those scenes. "And as strange as it seems, it's really hard to tell him what to do, no-one tells DARTH what to do. So you find you have to talk with the actor and figure it all out before the helmet goes on."
While Edwards was ultimately able to get his way with Vader's scenes - even drastically changing his 'Walk of Death' months before the film's release - he admitted that he still felt slightly intimidated.